Gun type sprayer



July 11, 1961 J. J. ROSENKRANZ GUN TYPE SPRAYER 2 Sheets-Sheet 1 FiledAug. 2'7, 1959 49 FIG.'5

INVENTOR.

JULES J. ROSENKRANZ ATTORNEY FlG.5

FI G.4

y 1961 J. J. ROSENKRANZ 2,991,945

GUN TYPE SPRAYER Filed Aug. 27, 1959 2 Sheets-Sheet 2 INVENTOR. JULES J.ROSENKRANZ Unite This invention relates to a gun type sprayer and morespecifically to a sprayer having a valved nozzle including dual,adjusting means for varying the character of the discharging stream.

Heretofore, the known gun type sprayer could be ad justed to form adesired kind of spray only by the operators ability to depress thesprayer handle a given amount intermediate its limits and to manuallymaintain the handle at that position. Any deviation from this positionwould alter or change the character of the spray. For this reason it wasvirtually impossible for an operator to manually maintain anyintermediate spray position between the two extreme limits, i.e. theopen and closed positions of the sprayer, for any given length of time.Even in those sprayers in which an attempt had been made to provide forspray adjustments, it was virtually impossible to maintain a sprayvariation which falls intermediate the adjusted position and the extremelimit of such sprayer. Therefore the known sprayers had in actualpractice only twopositive settings which could be effectivelymaintained. These were either the closed or adjusted position and thefull open position.

Therefore an object of this invention is to provide in a gun typesprayer means for positively fixing and main taining a plurality ofspray positions or variations which lie intermediate the extreme spraylimits or setting of a sprayer.

Another object is to provide for further adjustment of the sprayintermediate that of any two adjacent fixed positions.

Another object is to provide means for effecting Vernier adjustment tofinely vary the character of spray in any of the fixed positionsthereof.

Still another object is to provide a gun type sprayer which isrelatively simple in construction, inexpensive to manufacture andpositive in operation.

The various features of novelty which characterize the invention arepointed out with particularity in the claims annexed to and forming apart of this specification. For a better understanding of the invention,its operating advantages and specific objects attained by its use, reference should be had to the accompanying drawings and descriptive matterin which there is illustrated and described the preferred embodiments ofthe invention.

In the drawings:

FIG. 1 is a side elevation view of a gun type sprayer of this invention,having a fragmentary part shown in section.

FIG. 2 is a fragmentary section view of the sprayer of FIG. 1.

FIG. 3 is an enlarged detail of the notches by which the character ofthe spray can be pre-set intermediate the extreme limits of the sprayer.

FIG. 3A is a section view taken along line 3A3A of FIG. 2.

FIG. 4 is a detail plan view of a wire detent utilized to fix the typeof spray desired.

FIG. 5 is a sectional view of the wire detent taken along line 55 ofFIG. 4.

FIG. 6 is a side elevation view of a modified form of the invention.

FIG. 7 is a fragmentary sectional side view of the embodiment of FIG. 6.

rates Patent 01 "ice FIG. 8 is a pictorial illustration showing theembodiment of FIG. 1 adapted to receive an insecticide sprayerattachment.

FIG. 9 illustrates the embodiment of FIG. 1 utilized in conjunction witha sprinkler.

Referring to FIGS. 1 to 5, the improved sprayer of this inventioncomprises a body 20 which includes a nozzle barrel 21 provided with alongitudinally extending bore 22 and a stem 23 connected theretointermediate the ends of the bore 22. The lower end of the stem 23 isprovided with a threaded coupling 24 which is adapted to receive an endcoupling of a hose (not shown).

One end of the barrel 21 is provided with radially, inwardly extendingflange or shoulder 25 to define a fluid discharge orifice 26. The otherend of the bore is closed by an annular plug 27 threaded therein.

Extending longitudinally of the bore and slidably mounted therein is aneedle valve 28A and connected valve stem 28, one end 28B of the stem 28extending through the annular plug 27 and outwardly of the barrel. Thisend of the stem is threaded for receiving an adjusting knob 29. In orderto seal the rear end of bore 212 fluid tight, the plug 27 is providedwith a recess 30 forming a seat for an O packing ring '31, and a washer32 is wedged between shoulder 33 and plug 27 to perfect the seal.

A shut off valve means is provided to valve the orifice.

As shown the shut off valving means includes a washer 34 in abuttingrelationship to flange 25, and valve member 35 fixedly secured to thevalve stem 28. Referring to FIG. 3A, it will be noted that the valvemember 35 is shaped as a rectangular or square member and is providedwith a projecting annular lip 36 which is normally urged against thewasher 34 to form a fluid tight seal thereat in the normal operatingposition of the valve member 35. A coil spring 37 is disposed about thestem 28 between washer 32 and a split ring or washer 38intermediate theends of the stem to normally bias the valve member 35 in the closed orfluid sealing position.

A handle or trigger 39 is provided to simultaneously actuate the valvingmeans 35 and needle valve 28A. As

shown, the handle 39 is pivotally connected to a lug 40 formed integralwith the body 20 by means of a pivot or pin 41 intermediate the endsthereof. The upper end 42 j of the handle 39 is provided with an openingfor receiving the adjusting knob 29. As shown, the knob 29 is providedwith a knurled head 29A and a reduced shank 29B terminating with aradially extending collar or flange 29C. The flange 290 within the upperend '42 of the handle 39 prevents the adjusting knob from being rotatedoil the stem 28 thus preventing loss of the knob 29. If

desired the upper end of the handle may be bifurcated for receiving thereduced shank portion 29B of the knob 29.

Thus it will be noted that the handle 39 is fixedly connected to thevalve stem 28B and upon actuation, as by squeezing or depressing thehandle, and thereby exerting a force against the bias of the springcauses the needle valve 28A, valve member 35 and stem '28 to belongitndinally displaced. When this occurs the fluid flows through thebarrel and around the valve member 35 through the spaces 43 around lip36 and out through the orifice 26. The relative position of the needlevalve 28A to the orifice 26 controls the character of the spray such asvarying degrees of course and fine streams.

If desired a hand guard 44 may be integrally formed as part of thehandle to prevent pinching of the flesh between the thumb and theforefinger.

In order that the character of spray can be positively fixed andmaintained at a plurality of positions intermedi- 1 ate the extremelimits of the sprayer, i.e. between the Patented July 11, 1961 open andclosed position thereof, a novel pre-setting means is provided.

Referring to FIGS. 1, 3, 4 and 5, the upper end of the handle 29 isprovided with a recessed or embossed portion 45 to which there ispivotally connected a wire detent 46. As best seen in FIGS. 4 and 5, thedetent 46 is formed as a yoke having a pair of spaced arms 46Aterminating with intumed end portions 46B which are received in openingson either side of the handle 39. Connecting the arms 46A and formedintegrally, as shown, is a cross piece 46C, which is arcuate in form andangularly disposed relative to the arms. As shown in FIG. 1, with theyoke pivotally connected to the handle 39 and extending forwardlytherefrom, the cross piece 46C is arranged to em brace the top of thebarrel.

Located on top of the barrel 21 within the range of the yoke are aplurality of notches 47 at successively spaced intervals, each notch 47representing a predetermined fixed position of the needle valve 28Arelative to the orifice 26 and therefore a spray of some known and fixedcharacter. As shown in FIG. 3, each notch 47 is preferably formed at arearwardly inclined 45 slope, each notch being separated by a fiat 48.Preferably these notches 47 are formed at the rear end portion of anexternal, radially extending rib 49 running longitudinally along the topof barrel 21.

In the illustrated embodiment of FIG. 1, three notches 47 are shown eachindicating a desired fixed character of spray. Thus in operation, if theoperator desires to select a type of spray having a given or knowncharacter and to effortlessly maintain the same over a considerableperiod of time, he merely presses the handle or trigger until the yokedetent 46 drops into the selected notch 47. Once the yoke detent 46 ispositioned in the selected notch 47 it may be maintained thereatindefinitely without any further effort on the part of the operator. Itwill be noted that as the handle 39 is moved from closed toward the fullopen or depressed position, the notches are formed so that the yokedetent 46 will ratchet from one notch to another in one direction onlyuntil the desired fix position is established. To go from one setposition to another in the direction from full open to either closed orlesser setting, it is necessary to only manually lift the detent out ofits notch and move the same to the next preceding notch. Thus with thisarrangement the gun nozzle described can be adapted to be positioned ata plurality of fixed intermediate positions and be effortlesslymaintained thereat in a relatively simple and positive manner.

In the event it is desirous to more finely adjust the character ofspray, or to adjust the spray to positions other than those establishedby the notches, the adjusting knob may be resorted to. With the crosspiece 46C of the detent raised to the position indicated by dotted linein FIG. 1 or riding on the flat 48 between notch 47, the adjusting knob29 may be rotated to adjust the handle and connected needle valve at anyposition between any adjacent pair of pre-set positions. With thearrangement described, the adjusting knob 29 can also perfect vernieradjustments of the needle valve 28A for attaining very fine settings atany of the set positions. A feature of the arrangement described is thatin addition to the fix settings which can be easily and quickly made, aninfinite number of settings intermediate a pair of fix settings are alsoavailable, by the actuation of the adjusting knob.

In order to increase the versatility of the sprayer described, externalthreads 49 are provided adjacent the discharge end of the barrel 21.Thus the nozzle barrel 21 can be employed with various auxiliaryattachments, such as a sprinkler 50 or insecticide sprayer 51 asillustrated in FIGS. 9 and 8, respectively.

Longitudinally extending ribs 52 spaced about the periphery of thebarrel are provided to protect the threads 49 against injury due todropping or banging. The ribs are formed so that an end portion 53extends radially outward a greater distance than the threads so that anyimpact on the body tending to injure the threads 49 is taken by theraised portion 53 of the ribs 52.

FIGS. 6 and 7 illustrate a modified embodiment of the invention. Thisform is similar to that previously described except that the barrel 70defining the nozzle is not formed with an external threaded portionadjacent the discharge end thereof, and consequently also does not havethe protecting ribs 52 as hereinbefore described.

In this form, the means for positively establishing a spray of knowncharacter at a position intermediate the extreme limits of the sprayer,and for maintaining the same, comprises a cam surface 71 formed at thetop, rear of the barrel 70, and a yoke detent 72 pivoted to the handlemeans 73 as hereinbefore described. As shown the cam surface slopesupwardly and to the rear and terminates at a downwardly sloping surface74. With this arrangement two pre-set positions are established. Thesetwo positions are those defined by the extreme limits of the cam surface71. In going to the full open position, the detent 72 rides up the camas the trigger or handle 73 is depressed till it drops down surface 74.When this occurs the character of spray established is fixed and iseffortlessly maintained until the detent is manually raised and restoredto its normal position as seen in FIG. 6.

The form of FIGS. 6 and 7 is further distinguished from that of FIGS. 1and 2 in that the coil spring 75 is compressed between the end packingwashers 76 and the orifice shut off valving member 77, the latter beingsimilar to that previously described.

In all other respects and the manner of operation, the embodiment ofFIGS. 6 and 7 is similar to that of FIG. 1 as hereinbefore described.

With the arrangement herein shown and described, the character of thespray can be quickly changed to a plurality of set sprays of desiredcharacter by merely depressing the handle to set the detent at theproper setting. In addition, the character of the set spray can befinely adjusted by rotation of the vernier adjusting knob 29. Also thefixed or pre-set spray position can be effortlessly maintained over anindefinite period of time inasmuch as the detents 46 and 72automatically maintain the respective needle valves 28A, 28A in theproper fixed position relative to their respective orifice forestablishing the desired character of spray. Also the arrangementsdescribed are particularly adapted for establishing a desired characterof spray quickly and accurately.

While in accordance with the provisions of the statutes there isillustrated and described herein the best form and mode of operation ofthe invention now known to the inventor, those skilled in the art willunderstand that changes may be made in the form of the apparatusdisclosed without departing from the spirit of the invention covered bythe claims, and that certain features of the invention may sometimes beused to advantage without a corresponding use of other features.

What is claimed is:

1. A gun type sprayer comprising a body having a tubular barrel with abore extending longitudinally therethrough, one end of said boredefining a fluid discharge orifice, means for valving said orificeincluding an orifice adjusting needle valve and an orifice shut offvalve, spring means normally biasing said shut off valve toward orificeclosing position, means for sealing the other end of said barrel, meansforming a fluid inlet intermediate the ends of said bore, said valvingmeans including a valve stem extending longitudinally of said bore andhaving a portion thereof extending beyond said barrel and sealing means,a knob adjustably connected to said end portion of the valve stem, ahandle pivoted intermediate the ends thereof to said body, said knobbeing received within the upper end of said handle whereby actuation ofsaid handle effects movement of said valving means against the bias ofsaid spring means, means for automatically pre-setting the needle valveof said valve means at any of a plurality of intermediate settingsbetween [full open and full closed position of said orifice uponactuation of said handle, and said knob upon actuation thereof efiectingvernier adjustment of said handle and valving means at any of saidintermediate pre-set positions of said needle valve.

2. The invention as defined in claim 1, wherein said automaticpre-setting means includes a detent pi-votally connected to the upperend of said handle, and a notched detent receiver on top of said barrelfor retaining said detent in any of the preset positions.

'3. The invention as defined in claim 2, wherein said detent comprises aspring yoke having a pair of arms, each am having an inturned portionadapted to be received in said handle whereby said yoke is adapted topivot between operative and inoperative position, and a cross piececonnecting said arms, said cross piece being angularly disposed to saidarms for embracing the upper end of said barrel and engaging saidnotched detent in operative position.

4. A gun type sprayer comprising a body having a tubular barrel with abore extending longitudinally therethrough, one end of said boredefining a fluid discharge orifice, said barrel having an externalthreaded portion adjacent the discharge end thereof adaptable forreceiving an auxiliary spray attachment, a plurality of external,

longitudinally disposed, radially extending ribs circumferentiallyspaced about said body to a guard for said threaded portion, means forvalving said orifice, spring means normally biasing said valving meanstoward orifice closing position, means for sealing the other end of saidbarrel, means forming a fluid inlet intermediate the ends of said bore,said valving means including a valve stem extending longitudinally ofsaid body, said stem having a threaded portion extending beyond saidsealing means, a knob adjustably threaded to the valve stem, a handlepivoted intermediate the ends thereof to said body, said knob beingreceived within the upper end of said handle whereby actuation of saidhandle eifects movement of said valving means against the bias of saidspring means, means for automatically pre setting said valve means atany of a plurality of intermediate settings between full open and fullclosed position thereof upon actuation of said handle, and said knobupon rotation thereof eflfecting vernier adjustment of said handle andvalving means at any of said pre-set adjusted positions of said valvingmeans.

5. A gun type sprayer comprising a body having a tubular barrel with abore extending longitudinally therethrough, one end of said boredefining a fluid discharge orifice, said barrel having external threadsadjacent the discharge end thereof adaptable for receiving an auxiliaryspray attachment, and external longitudinally, radially disposed ribextending along the top of said barrel, said rib having a plurality ofspaced notches adjacent its rear end portion, means for valving saidorifice, spring means normally biasing said valving means toward orificeclosing position, means for sealing the other end of said barrel, meansforming a fluid inlet intermediate the ends of said bore, said valvingmeans including a valve stem extending longitudinally of said bore, saidstem having a portion extending beyond said sealing means, a knobadjustably connected to the valve stem, a handle pivoted intermediatethe ends thereof to said body, said knob being received within the upperend of said handle whereby actuation of said handle efiects movement ofsaid valving means against the bias of said spring means, a wire detentpivotally connected to said handle, said detent being adapted to engageany of said notches to automatically pre-set said valve means at any ofa plurality of intermediate settings between the full open and fullclosed position thereof upon actuation of said handle, and said knobupon actuation thereof effecting Vernier adjustment of said handle andvalving means between any of said intermediate pre-set positions of saidvalving means.

References Cited in the file of this patent UNITED STATES PATENTS616,629 OLally Dec. 27, 1898 927,593 Phillipson July 13, 1909 1,602,748Browning Oct. 12, 1926 2,030,510 Grifliths Feb. 11, 1936 2,064,794Klauminzer Dec. 15, 1936 2,657,098 Strahman Oct. 27, 1953 2,675,206Lindberg Apr. 13, 1954 2,937,813 Rinkewich May 24, 1960 FOREIGN PATENTS284,863 Great Britain Feb. 9, 192 8

